Tumblr, is a nice fusion of blogging and twittering and is much easier to maintain compared to a full-fledged blogger or wordpress blog.
Unless you’re a designer yourself, creating your own theme can be an exercise in futility. But wait a minute, there are also numerous commercial and free tumblr themes, so you just need to pick the one that suits you best and start tumblring!

Take a look through the 40 unique and simply awesome designed Free Tumblr themes, that will inspire you to change the look of your Tumblr site.